Knocker for bran-dusters



(No Model.)

M. J. SGHEGH.

KNOGKBR POR BEAN DUSTBRS.

5&2)

N. PKTERS, Phnmimmgvupher. wnmnglm D. c.

lUniTisnD @Tatras- MICHAEL JOSEPH SCHECH,

PaTnNT @miem 0F "l. PAUL, MINNESOTA.

KNOCKER Toa saam-undersea.

Q BPECIFICATON forming part of Letters Patent No. 302,946, dated August5, 1884:.

Application filed April Il, 1884.

(No model.)

To @ZZ whom it may concern..-

Be it known that I, MICHAEL Josnrn Sonnen, a citizen ofthe UnitedStates, and a resident of Stlaul, in the county of Ramsey, inthe Stateof Minnesota, have invented certain new andmseful Improvements inKnockcrs for Bran-Busters, of which the following specification is afull, clear, and exact description, reference being also had to theaccompanying drawings, in which- Figure l is a semi-sectional sideelevation. Fig. 2 is a semi-sectional rear elevation; and Fig. 3 is aplan view of a bran-duster, showing my improved knocking mechanismattached thereto. Fig. 4 are enlarged perspective views oftheknockersblocks removed.

rlhisinvention is designed to eliectually remove the adhering dust,&c.,i'rom the bolting-cloth of upright bran-clusters and similarmachines, and may be applied to any form of such' machines; but for thepurpose of illustration I have shown it applied to one of the well-knownforms of bran-clusters, A being the outer casing,supporting au uprightcentral shaft,` B, to which conical beater-arms are attached inside astationary bolting-elothcovered conical frame, as shown. This shaft Bruns at the top through a bridge-tree, C, and is supported at the bottomby atram-pot, D, and adjusting-lever D2, so that the shaft can beadjusted higher and lower.

E is the drivingpulley by which the shaft may be revolved.

The stationary conical bolting-cloth-covered frame is formed of an upperring, a', resting lagainst the under surface of the top A2 of the casingA', and a bottom ring, a2, resting upon a iloor or division plate, A,attached to the frame A near its bottom, these two rings being connectedby upright ribs Z). This forms a circular conical frame orreel, to theinside of which the bolting-eloth is secured. Angular rings c arearranged around the outside of the bolting-cloth and between the ribs b,to still further support the cloth and preserve its rotundity.

F Fl are two wooden blocks formed with their lower parts smaller thantheir upper parts, and with said smaller parts iitting into holes 5o in`the top A2 of the frame A, and resting sides of the machine, the saidenlarged upper parts forming shoulders to support the blocks upon thetop A, and prevent them falling through in the event ol' the removal ofthe conical reel-frame.

G- is a rock-shaft jonrnaled by its'ends in standards el l2 upon top ofthe frame A', and having secured thereto two hammers or k nockers, H Il,adapted,when lowered down, to rest with their faces in contact with theupper enlarged ends of the blocks F F2. The shaft l extends up above thebridge-tree C, and is provided with a worm-pinion, c', adapted to engagewith a worin-gear, e2, journaled in a standard, g', fast on thebridge-tree C. By this means the revolving motion of the shaft B will becommunicated tothe wormgear c2.

h is an arm fast by one end to the shaft G, and extending forward andadapted to be acted. upon by a pin, le?, projecting from the side of thegear c2, so that when the gear is revolved the pin h2 will run beneaththe arm h', raise it up, and also elevate the hammers H H2, and then,when the pin passes out from under the end of the arm h', the hammerswill drop upon the blocks F F2. These blocks resting directly upon theframe of the conical bolting-cloth-covered frame, and the parts of thelatter being all iirmly and rigidly connected together,these blows ofthe hammers F `F2 will vibrate and jar the ,entire surface of thebolting-clcth and shake the adhering dust loose therefrom. The shaft Cand worm e will revolve at a speed of about three hundred revolutionsper minute, and the gear e2 will revolve at about eight revo` lutionsper minute; hence the hammers will strike about eight blows per minute,which is oi'ten enough for ordinary purposes. The worm-gear cIl isadjustable in the standard g', and the latter is adjustable upon thebridgetree C, so that a larger or smaller worin-gear may be arrangedthereon at will, to increase or decrease the number of blows per minuteto adapt the machine to different qualities of material.

Having described my invention and set forth its merits, what I claim isupon the top of the upper ring, a', at opposite IOO The combination,with the casing A and In testimonyl whereof I have hereunto sebstationary bolting-eioth-covered frame Within my hand in presence oft-Wo subscribing wit- 1o tlle soamte, oflgh? ioBose biocsdh" ilnttheframe, nesses. Y t e ea ers a t. provi e Wi e wo1m' i n 5 scrv e,theWorm-Wheel e2, provided Withthe Y MICHAEL JOSEPH SOHLCH' pin 71?, andthe rock-shaft G, provided with the -Wiinesses: l lwm n', and hammers HH2, substantially as C. N. WOODWARD, and for the purpose hereinspecified. LoUIs FEEsER, Sr.

